Nut-lock



W. F. BROWN.

NUT LOCK.

APPLICATION FILED FEB. 28, 1921.

1,401,757, Patented. Dec. 27,1921.

I Fig. 1.

looks, of which the stars-s;

NUT-LOCK.

, Application filed Eebruary 28, 1921.

T 0 all whom it may concern Be it known that 1, WILLIAM Folumsr BROWN, a citizen or" the United States, residing at Kansas City, in the county of Jackson and State of ldissouri, have invented a certain new and useful improvement in Nutiollowing is a specification.

My invention relates to improvements in nut locks.

The object oi my invention is to provide a nut lock which is simple, easily applied and removed eliioient in operation. 7 I

The novel features of my invention are hereinafter fully described and claimed.

in the accompanying drawing, which illustrates my invention, 1

Figure 1 is a tional view of my improved nut lock.

Fig. 2 is a cross section on and which is Fig. 3 is a perspective view oi the shell. F1g. 1 is a. longitudmal sectional view oi":

a modification of my invention.

Fig. 5 is a cross section on the line 5-5 of Fig. 4. i

Fig. 6 is a cross section viewot another modified form of my invention.

Similar reference characters designate similar parts in the different views.

1 designates a polygonal sided shell adapted to be fitted on a polygonal sided nut 2, which is mounted on the of the bolt 8.

1 designates interlocking material, preterably cement, of a nature such that it may be placed in theshell 1 while in a. plastic condition and will then set or harden. The cement 41 embraces the threaded part of the bolt 3 and inwardly extending projections 5 which extend inwardly from the side walls of the shell 1. has. a hole 6 whichis considerably larger than the diameter of the bolt 3 and through which the cement may be inserted into the shell.

In applying tightened on shell 1, filled,

the not lock, the nut 2 is first the bolt 3, after which the or nearly filled with cement a is slipped onto the bolt 3 and over the nut '2. Excess of cement will be forced outwardly through the hole 6.

The cement engaging with the threads of the bolt and with the polygonal sides of the Specification 01 Letters Patent.

cheap to make,

' portion oi 'the. bolt the line 2-2 of threaded portion The outer end of the shell 1" r Patented Dec. 27, 1921. Serial 310.44%,379.

shell 1 and with the mjhhuohs 5 will hold the cement from turning on the bolt andin the shell-1, after the cement hardens. shell 1 will be held fromlturning by the cement, the nut will be held by the shell from turning on the bolt. p j

If desired additional means for holding the cement from turning on'the bolt may be provided. In Fig. 1 there" is shown a pin 7 mounted in a hole in the threaded part 0 the bolt and extending into the cement 1. The pin will hold the cement fromturning on the bolt." The projections 5 will hold the shell 1 from slipping off the nut 2. 1

Tn Figs. 1 and 5 a portion of the threaded [lat surface 8 on which the cement t rests. This serves to hold the cement from turning on the bolt. 7 V p Tn Fig. 6, the bolt is shown provided with a longitudinal groove 9 into which the'cement flows. After the cement hardens the portion of the cement in the groove 9 holds the cement from turning. Y To remove or to loosen the nut 2, the shell 1 is tapped sharply to break up the cement 1, which can then be worked out of the shell through the hole 6. The shell 1 may then be slipped trom'the bolt and nut, after which the nut may be loosened or removed. Inthe form shown in Figs. 1 and 2, the pin 7 must be removed in order to remove the nut from the bolt.

For the interlocking material various sub stances may be used, as

for examplelitharge mixed with iron fillngs, but cement lspreierable on account of its cheapness, quickness in hardening, and easy breaking quality, while at the same time itis sufiiciently rigid and strong to hold the shell and nut from turning under ordinary conditions ofuseJ As the 3 is cut away, leaving a I do not limit my invention to the struc- I tures shown and described, as othermodifications, within the scope of the appended claims, may be made without departing from the spirit of my invention.

'l fhat I claim is. i I r 1.111 a nut look, a polygonal shell adapted to be fitted on a nut mounted on a bolt, the shellhaving one or more. inwardly extending projections and being adapted to receive and hold plastic material in which a threaded portion of the bolt is embedded, substantially as set forth.

2. in a nut lock, the combination with a extending nroiections bolt having a threaded portion and a nut mounted thereon, of a shell fitted on the nut and arranged to hold the latter from turning and having one or more inwardly of interlocking material filling the shell and embracing a threaded portion of the bolt, said material being of a nature such that it Will harden after having been placed'in the shell, substantially as set forth.

3. ln nut lock, the combination With a and a polygonal sided nut mounted iereon, of a polygonal sidedshell fitted on re nut and encircling and spaced apart iii-om the bolt and having one or more in- Wardly extending projections, and interlocking material filling the shell and embracing the bolt and said projections-and being of a nature such that Will harden after having been placed in the shell, and means for holding said material from turning on the bolt, substantially as set forth.

4*. ln a nut lock, the combination with a bolt and a polygonal sided nut mounted thereon, of a polygonal sided shell fitted on the nut and encircling the bolt and spaced apart from the bolt and having one or more inwardly extending projections, and cement embracing the'bolt and said projections in said shell, substantially as set forth.

5. In a nut look, the combination with a bolt and a polygonal sided nut mounted thereon, of a shell fitted on the nut and encircling and spaced apart from the bolt and having one or more inwardly extending projections, c ment embracing the bolt and said projections in said shell, and means for holding the cement, when the latter hardens,

from turning on said bolt, substantially as set forth.

6. In a nut lock, the combination With a bolt and a polygonal sided nut mounted thereon, of a shell fitted on the nut and encircling and spaced apart from the bolt and having one or more inwardly extending projections, bolt and said projections, and a pin mounted in the bolt and extending into said cement, substantiallyas set lorth.

7. ln a nut lock, the combination With a bolt and a nut, of a shell having meansfor engaging thenut to hold the latter from turning and encircling and spaced apart from the bolt, and material adapted to harden engaging the shell so as to hold the latter from movement, and engaging the bolt so as to hold the latter from turning, substantially as set forth.

8. In a nut lock, the combination With a bolt and nut, of a shell having means for engaging the nut to hold the latter from turning, and material adapted to harden interlocked With the shell and bolt, substantially as set forth.

9. In a nut lock, the combination with a bolt and nut, of a shell encircling and spaced apart from the bolt, and material in the shell.

and engaging the bolt and adapted to harden, the shell being arran ed to hold the nut from turning, and the said material being interlocked With the bolt and shell, substantially as set forth.

In testimony whereof I name to this specification.

WILLIAM FORREST BROWN.

have signed my cement in said shell embracing the 

